Is 316L suitable for wastewater evaporation devices?
Thread Content
It is an agricultural chemical wastewater; its composition is unknown, but it is known to contain organic substances such as quinoline, as well as sodium chloride and potassium chloride. Is 316L material suitable for use in evaporation equipment?
It is best to use an evaporator made of 316L material
316L can’t withstand chloride ions, right? I was thinking of using titanium, but the cost is very high
Stainless steel definitely corrodes more rapidly at high temperatures; it is best to choose titanium
I know that 316L is prone to corrosion, but have you considered the situation where the temperature during wastewater evaporation isn’t high? In other words, there is a certain period of time during which 316L equipment can be used; however, using titanium-based equipment would be too costly. After all, it’s about wastewater evaporation treatment
The temperature is around 100, which is quite high
It depends on the distillation method you use
When using MVR technology, the temperature does not need to be that high; multi-effect distillation can be employed, and the heat exchanger tubes can be replaced later, which is both economical and cost-effective
It contains chloride ions; 316L is only passable in this regard, and titanium materials are recommended.
The owner insists on using MVR; we, on the other hand, would like to use a multi-effect system, as the temperature rise is too high – it’s 16 degrees
Graphite heat exchangers are recommended; they can be used for a long time under the boiling conditions of hydrochloric acid at any concentration without experiencing corrosion. Graphite heat exchangers have good corrosion resistance and high cost-effectiveness, making them an excellent choice for use in wastewater concentration systems, especially in those dealing with chlorinated wastewater.